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  1. #1

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    Atomal/Calbe A49 - Successful clone.

    Last month I was make some experiment with different formulas like Atomal/Calbe A49. I use CD-1 because it available in my country. I'm really impressed with results. Some samples:

    CD-1 + Ascorbate + Kodalk, Ilford HP5+ @400





    CD-1 + Hydroquinone + Borax, Ilford HP5+ @400





    Last edited by Relayer; 06-07-2011 at 08:46 PM. Click to view previous post history.

  2. #2

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    Thanks for posting this. Have you tried these with a slower film like FP4 or Pan F?

  3. #3

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    I did some test with a CD too. Ortho Phenylene Diamine like in the W665 formulae. However here you have a speed loss of 1F stop. But the result is very fine grain. The interesting about your A49 and Ascorbate is the film speed: Still E.I. 400 with that HP5+ ?

    Fomapan Creative 200 (135-36) in W665 E.I. 100

    My favorite store: http://www.fotohuisrovo.nl

  4. #4

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    With hydroquinone it may be like Adox Adolux ATM 49 but interesting to see that it works with ascorbate as well.It would be interesting to know your formula.
    http://www.digitaltruth.com/products...ATM49_MSDS.pdf

  5. #5

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    ascorbate version:
    Sodium Sulfite 60g
    CD-1 2g
    Sodium Ascorbate 5g
    Kodalk 7g
    Water 1l

    CD/Q version:
    Sodium Sulfite 100g
    CD-1 5g
    Hydroquinone 6g
    Borax 6g
    Boric Acid 4g
    Water 1l

    Quote Originally Posted by Michael R 1974 View Post
    Thanks for posting this. Have you tried these with a slower film like FP4 or Pan F?
    no. but I think that result will be very-very good

  6. #6

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    It seems the new name for the commercial product is Adox Atomal 49:
    http://www.adox.de/english/
    It is available in the US EU and UK at least.
    You made a good piece of research but CD-1 is not available everywhere.
    btw the msds for ATM 49 appears different from the original Atomal formula which is as quoted in this thread:
    http://www.photography-forums.com/ag...-t93449p2.html
    Last edited by Alan Johnson; 06-08-2011 at 03:47 PM. Click to view previous post history.

  7. #7

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    Quote Originally Posted by Alan Johnson View Post
    You made a good piece of research but CD-1 is not available everywhere.
    btw the msds for ATM 49 appears different from the original Atomal formula which is as quoted in this thread:
    http://www.photography-forums.com/ag...-t93449p2.html
    N-Hydroxyethyl-o-aminophenol used in original Atomal isn't available anywhere.

    Calbe A-49 uses as developing agents:
    N-N-diethyl-1,4-phenylendiammoniumsulfate = Kodak CD1 and
    Hyroquinone
    CD-1 is N,N-Diethyl-p-phenylenediamine sulfate, CAS: 6283-63-2. its still available.
    CD-1 can be substituted (and I really substitute it) with N,N-Diethyl-p-phenylenediamine Hydrochloride, CAS: 2198-58-5 (also available).
    CD-1 also can changed to CD-2 - N, N-bis (2-hydroxyethyl)-p-phenylene diamine Sulfate (CAS: 4327-84-8), but CD-2 need in 1.5-1.8 times more
    you can try to use CD-3 or CD-4. can't test it because not available in my country

  8. #8

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    One day it would be an interesting experiment to try to make something like original Atomal ,replacing oxyethyl o aminophenol by p-aminophenol hydrochloride,maybe.



 

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